[ { "type": "api-change", "category": "GuardDuty", "description": "Make accountIds a required field in GetRemainingFreeTrialDays API to reflect service behavior." }, { "type": "api-change", "category": "EC2", "description": "Adds support for linkedGroupId on the CreatePlacementGroup and DescribePlacementGroups APIs. The linkedGroupId parameter is reserved for future use." }, { "type": "enhancement", "category": "PCS", "description": "Change API Reference Documentation for default Mode in Accounting and SlurmRest" }, { "type": "api-change", "category": "ConfigService", "description": "Added supported resourceTypes for Config from July to November 2025" } ]